Colocasia / Taro (Colocasia esculenta)
Corm rot (Pythium sp. , Phytophthora sp.)
Symptoms
- Wilting, chlorosis and stunting are the initial symptoms followed by collapse of the whole plant.
- Rotting of the corm usually start at the base and progresses upwards.
- In later stages the diseased tissue crumbles and produces an offensive smell.
Management
- Field sanitation
- Rogueing of diseased plants
- Crop rotation
- Proper drainage
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | |||||||
| 1 | Captan 75 WP | Captaf, Captan, Dhanutan 50% WP | Green | 3 g | 30 g | 600 g | 1500 g | Soil drenching |
| 2 | Captan 75 WP | Captaf, Captan, Dhanutan 50% WP | Green | 3 g | - | - | - | Seed treatment for 30 minutes before planting |
Extremely Toxic
Highly Toxic
Moderately Toxic
